Airplan A graphical user
interface based flight planning program for general aviation pilots.
Uses great circle routing to plan flights anywhere.

Airports En Route An airports
directory with flight plan calculator. Does distance, track, heading,
ground speed and time en route between any of more than 5500 North
America airports. Also provides fast links to weather, flight services
and destination business directories. Designed as a total pre-flight
information source.

fboweb.com An Internet-based tool for anyone
interested in aviation. Pilots can access the web site to obtain
information and plan their flights, and FBOs can use the site to track
flights, attract aircraft to their facilities and help manage their
operations. Charter outfits can use the site to manage their fleet.

(FAA) International Flight Information Manual
The IFIM is an online preflight and planning guide for use by U.S.
nonscheduled operators, business, and private aviators flying outside of
the United States. General info, country info, entry and departure
info, NOTAMS, links to travel sites.

SeeYou
flight planning and analysis software
Comprehensive statistics, free vector maps, direct communication to
flight recorders and other functions make this a tool for soaring pilots
and contest organizers. Can be used by other agencies that need flight
tracking capabilities (ex., airborne fire tankers, police and aircrews
of Civil Air Patrol Search and Rescue) to better perform and record
their task. A great debriefing tool.

SFSA Web Briefing Office
Briefing office and flight planning unit for pilots and flight
dispatchers in Northern Europe, for flight to and within Northern
countries/Scandinavia.